Chapter 4 FortiOS Carrier : MMS Security features : MMS virus scanning
  
MMS virus scanning
You can use MMS virus scanning to scan content contained within MMS messages for viruses. FortiOS Carrier virus scanning can be applied to the MM1, MM3, MM4, and MM7 interfaces to detect and remove content containing viruses at many points in an MMS network. Perhaps the most useful interface to apply virus scanning would be the MM1 interface to block viruses sent by mobile users before they get into the service provider network.
To go to MMS virus scanning, go to Security Profiles > Carrier > MMS Profile, select an existing or create a new profile, and expand MMS Scanning. See “MMS scanning options”.
This section includes:
MMS virus monitoring
MMS virus scanning blocks messages (not just attachments)
Scanning MM1 retrieval messages
Configuring MMS virus scanning
Removing or replacing blocked messages
Carrier Endpoint Block
MMS Content Checksum
Passing or blocking fragmented messages
Client comforting
Server comforting
Handling oversized MMS messages